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Lamar County, TX — Planting Guide

Lamar County is in USDA Zone 7b. The average last spring frost is March 15 and the first fall frost is November 15, giving you a growing season of approximately 245 days.

At an elevation of 95 ft, Lamar County receives approximately 59.8 in of rainfall annually. Summer highs average 91°F with winter lows around 28°F. The predominant soil type is Sandy Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 43 days year to year — ranging from February 25 in warm years to April 9 in cold years. The growing season is trending longer by about 3.28 days per decade. Lamar County scores 46/100 (Moderate) on the Microclimate Index.

🌡️ Zone

7b (5°F to 10°F min)

❄️ Last Frost

March 15

🍂 First Frost

November 15

📅 Growing Season

245 days

⛰️ Elevation

95 ft

🌧️ Annual Rainfall

59.8 in

Lamar County, TX Long season
245 days
Last Spring Frost March 15
245 growing days
First Fall Frost November 15

Monthly Watering Calendar

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

1"/wk 0" 2.4" 4.9" 7.3" 9.7" Jan 1.7" Feb 2.1" +0.8" Mar 3.5" Apr 6.8" May 8.8" Jun 9.7" Jul 8" Aug 7.1" Sep 5.3" +0.9" Oct 3.4" Nov 2.2" Dec 1.4"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.7 in 4 days None
Feb 2.1 in 4 days None
Mar 3.5 in 5 days 0.8 in Moderate
Apr 6.8 in 7 days Low
May 8.8 in 10 days Low
Jun 9.7 in 8 days Low
Jul 8 in 6 days Low
Aug 7.1 in 7 days Low
Sep 5.3 in 6 days Low
Oct 3.4 in 4 days 0.9 in Moderate
Nov 2.2 in 4 days None
Dec 1.4 in 4 days None

Annual total: 60 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.

Lamar County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Mar 15 → Nov 15 245 frost-free days Protect crops frost returns Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Apr 9 Protect by: Nov 30

Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.

How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.

Planting Strategy Last Spring Frost First Fall Frost Frost-Free Days
Conservative (safest) Apr 9 Nov 30 235 days
Cautious Mar 24 Nov 23 244 days
Average year Mar 15 Nov 15 245 days
Optimistic Mar 7 Nov 3 241 days
Aggressive (risky) Feb 25 Oct 28 245 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±43 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

🌱
Is the growing season changing?

Yes — growing seasons are getting longer here (about 3.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

46 Moderate
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
3.0/10
Altitude Challenge
0.0/10
Climate Shift
10.0/10
Rainfall Challenge
5.9/10

Lamar County presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 7b Frost Countdown
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Last Frost: Mar 15 First Frost: Nov 15

Local Gardening Help in Lamar County

Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Lamar County's climate and soil.

County Extension Office

Lamar County Texas A&M AgriLife Extension Extension Office

Phone: 979-845-7800

Visit Extension Office Website →

Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.

Master Gardener Program

Free gardening help from trained volunteers

Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.

Find Master Gardeners in TX →

Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.

Soil Testing

Available through your extension office

Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.

Request a Soil Test →

Services Available in Lamar County

Soil testing Pest management Master Gardener program Water conservation
Finding local nurseries & garden centers in Lamar County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Lamar County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.

How to Find Them

Search for "nurseries near Lamar County TX" or "garden center Lamar County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.

Community gardens & gardening groups

Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Lamar County TX" or check your extension office and local parks department. Facebook groups like "Lamar County Gardeners" or "Texas Gardening" are also excellent for local advice and plant swaps.

What to Plant After Your Harvest

After your first crops finish, use the remaining frost-free days to grow a second round.

Show 6 more succession options
After Melon (harvest ends Jul 26) 112 days until frost
After Basil (harvest ends Jul 26) 112 days until frost
After Squash (Summer) (harvest ends Jul 19) 119 days until frost
After Tomatoes (harvest ends Aug 9) 98 days until frost
After Eggplant (harvest ends Aug 9) 98 days until frost
After Corn (harvest ends Jul 12) 126 days until frost

Sunlight & Day Length

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

Longest Day

14.2 hours

Summer solstice daylight

Shortest Day

9.8 hours

Winter solstice daylight

Peak Sun Hours

10.4 hr/day peak (summer)

Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.

14hr 12hr 4h 7h 10h 13h 16h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

Onion tip: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 10 hr 5.8 hr Short day
February 10.8 hr 6.5 hr Short day
March 11.7 hr 7.2 hr Short day
April 12.8 hr 7.8 hr Neutral
May 13.7 hr 8.4 hr Neutral
June 14.2 hr 9.5 hr Long day
July 14 hr 10.4 hr Long day
August 13.3 hr 8.9 hr Neutral
September 12.2 hr 8.4 hr Neutral
October 11.1 hr 7.4 hr Short day
November 10.2 hr 6 hr Short day
December 9.8 hr 5.2 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting Calendar

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from May through Oct.

Best Month to Compost

May

Microbial activity peaks when soil is warm.

Active Composting

8 months

Nearly year-round composting.

60°F 70°F 30° 48° 65° 83° 100° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 41°F 47°F 🐢 Slow ~24 weeks
Feb 40°F 44°F 🐢 Slow ~24 weeks
Mar 46°F 49°F 🐢 Slow ~24 weeks
Apr 59°F 56°F ♻️ Active ~14 weeks
May 69°F 67°F 🔥 Peak ~8 weeks
Jun 79°F 73°F 🔥 Peak ~8 weeks
Jul 87°F 79°F 🔥 Peak ~8 weeks
Aug 88°F 84°F 🔥 Peak ~8 weeks
Sep 81°F 81°F 🔥 Peak ~8 weeks
Oct 69°F 71°F 🔥 Peak ~8 weeks
Nov 58°F 62°F ♻️ Active ~14 weeks
Dec 44°F 53°F 🐢 Slow ~24 weeks

Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Lamar County

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Insect Pest Pressure

7.6 / 10

High — expect multiple pest generations. Preventative measures essential.

Disease Risk

7.9 / 10

High fungal/bacterial risk. Space plants for airflow, water at soil level.

Seasonal Risk

Spring Moderate
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
Japanese beetles Moderate Jun, Jul, Aug
Squash vine borers Moderate May, Jun, Jul
Stink bugs Moderate May, Jun, Jul, Aug, Sep
Whiteflies Moderate Jun, Jul, Aug, Sep
Spider mites Moderate Jul, Aug
Organic pest management tips
  • Install physical barriers: floating row covers, copper tape for slugs, mesh netting
  • Apply Bt (Bacillus thuringiensis) for caterpillar control — safe for beneficial insects
  • Use kaolin clay spray to deter a wide range of insects on fruiting crops
  • Release beneficial insects: ladybugs for aphids, parasitic wasps for caterpillars
  • Apply neem oil weekly during high-pressure months
  • Mulch heavily (3-4 inches) to reduce soil-borne disease splash

Cover Crops for Lamar County

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.

Spring Cover Crops (4 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Mar 22 Sep 20 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Mar 23 Sep 20 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Mar 27 Sep 13 Massive biomass, breaks compaction, suppresses nematodes
White clover Feb 12 Sep 6 ✓ Yes Living mulch, fixes nitrogen, permanent ground cover
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
Crop Plant By Terminate N-Fixing Soil Benefit
Sunflowers Apr 4 Oct 25 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Austrian winter peas Sep 23 Feb 22 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Sep 23 Feb 22 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Sep 25 Mar 1 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Aug 29 Feb 22 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Oct 7 Feb 22 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Aug 18 Mar 1 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Aug 6 Mar 1 Erosion control, weed suppression, good biomass

Wind & Microclimate

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 18 mph   Summer: 13 mph

Fall: 14 mph   Winter: 14 mph

Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.

Windbreak Benefit

8.9/10

Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.

Frost Pocket Risk

Moderate

Some terrain variation (200 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.

Rainwater Harvesting Potential

How much water you can collect, when to collect it, and what size system you need for your garden.

Annual Collection

29,904 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

May, Jun, Jul, Aug

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Jan, Feb, Dec

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 60.0 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 29,904 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Your area gets ample rainfall — even small barrels make a big difference
  • Consider a rain garden to handle overflow during heavy rainfall months

Soil & Growing Conditions in Lamar County

Soil Type

Sandy Loam

Soil pH 5.8–6.8 · Moderately Well Drained drainage

Native soil is well-suited to most vegetables and herbs with regular compost additions.

Watering Needs

Drought stress: 3.5/10

Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (59.8 in. annual rainfall)

Season Tips

245-day frost-free season

Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.

Free Garden Planner

Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.

Get My Free Planner →

Recommended for Your Garden

🫧
Vermiculite $12-22

Retain moisture and nutrients in sandy soils with expanded vermiculite.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

📏
Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

🥬 Vegetables to Grow in Lamar County

113 vegetables that grow well in Zone 7b with planting dates for Lamar County.

Show all 113 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Feb 15 Mar 22 Mar 29 Jun 21 – Jul 26 80–100
Amaranth Jan 25 Mar 22 Mar 29 Jun 28 – Aug 16 90–120
Artichoke Mar 29 Aug 2 – Oct 11 120–180
Arugula Feb 8 Mar 1 Mar 15 Apr 19 – Jun 21 30–50
Asparagus Mar 29 730–1095
Beets Mar 1 Apr 26 – May 24 50–70
Belgian Endive Feb 8 Mar 1 Mar 15 Jul 5 – Aug 30 110–150
Bitter Melon Jan 25 Mar 22 Mar 29 May 31 – Jul 12 60–90
Black Beans Mar 22 Jun 21 – Aug 9 90–120
Bok Choy Feb 8 Mar 1 Mar 15 Apr 26 – May 31 40–60
Broccoli Feb 8 Mar 1 Mar 15 May 17 – Jun 28 60–90
Broccoli Rabe Feb 8 Mar 1 Mar 15 Apr 26 – May 31 40–60
Brussels Sprouts Feb 8 Mar 1 Mar 15 Jun 14 – Aug 9 90–130
Butternut Squash Feb 15 Mar 22 Mar 29 Jun 28 – Aug 2 85–110
Cabbage Feb 8 Mar 1 Mar 15 May 17 – Jul 12 60–100
Calabash Jan 25 Mar 22 Mar 29 Jun 21 – Aug 16 80–120
Cardoon Mar 29 Aug 2 – Sep 13 120–150
Carrots Mar 1 May 3 – Jun 7 60–80
Cauliflower Feb 8 Mar 1 Mar 15 May 10 – Jul 12 55–100
Celeriac Feb 8 Mar 1 Mar 15 Jun 28 – Aug 2 100–120
Celery Feb 8 Mar 1 Mar 15 Jun 7 – Aug 2 80–120
Celtuce Feb 8 Mar 1 Mar 15 May 17 – Jun 28 60–90
Chard Feb 8 Mar 1 Mar 15 May 10 – Jun 28 50–60
Chayote Jan 25 Mar 22 Mar 29 Aug 2 – Oct 11 120–180
Chickpeas Feb 8 Mar 1 Mar 15 Jun 7 – Jul 19 80–110
Chicory Feb 8 Mar 1 Mar 15 May 17 – Jun 28 60–85
Chinese Cabbage Feb 8 Mar 1 Mar 15 May 10 – Jun 7 50–70
Christmas Lima Beans Jan 25 Mar 22 Mar 29 Jun 21 – Jul 26 80–100
Collard Greens Feb 8 Mar 1 Mar 15 May 10 – Jul 12 55–75
Corn Mar 22 May 24 – Jul 19 60–100
Cowpeas Mar 22 May 24 – Jul 5 60–90
Cress Feb 8 Mar 1 Mar 15 Mar 29 – Apr 19 14–21
Crookneck Squash Feb 15 Mar 22 Mar 29 May 17 – Jun 14 45–60
Crosne Mar 1 Aug 2 – Oct 4 150–200
Cucumber Feb 15 Mar 22 Mar 29 May 24 – Jul 19 50–70
Daikon Mar 1 Apr 26 – May 24 50–70
Delicata Squash Feb 15 Mar 22 Mar 29 Jun 21 – Jul 26 80–100
Edamame Mar 22 Jun 7 – Jul 19 75–100
Eggplant Jan 11 Mar 22 Mar 29 Jun 7 – Aug 9 65–85
Endive Feb 8 Mar 1 Mar 15 May 3 – Jun 7 45–65
Escarole Feb 8 Mar 1 Mar 15 May 10 – Jun 7 50–70
Fava Beans Feb 8 Mar 1 Mar 15 May 31 – Jul 12 75–100
Fennel Jan 25 Mar 22 Mar 29 May 31 – Jul 12 60–90
Garlic 90–240
Green Beans Mar 22 May 17 – Jul 12 50–65
Horseradish Mar 29 Aug 2 – Oct 11 120–180
Hot Peppers Jan 11 Mar 22 Mar 29 Jun 7 – Sep 13 70–120
Hubbard Squash Feb 15 Mar 22 Mar 29 Jul 12 – Aug 16 100–120
Jicama Jan 25 Mar 22 Mar 29 Aug 2 – Oct 11 120–180
Kabocha Feb 15 Mar 22 Mar 29 Jun 28 – Jul 26 85–100
Kai Lan Feb 8 Mar 1 Mar 15 May 3 – May 31 45–60
Kale Feb 8 Mar 1 Mar 15 May 10 – Jul 5 50–70
Kidney Beans Mar 22 Jun 21 – Jul 26 85–110
Kohlrabi Feb 8 Mar 1 Mar 15 May 3 – Jun 7 45–65
Komatsuna Feb 8 Mar 1 Mar 15 Apr 19 – May 24 35–50
Leeks Feb 8 Mar 1 Mar 15 Jun 14 – Aug 30 90–150
Lentils Feb 8 Mar 1 Mar 15 Jun 7 – Jul 19 80–110
Lettuce Feb 8 Mar 1 Mar 15 Apr 19 – Jun 28 30–60
Lima Beans Mar 22 May 24 – Jul 5 60–90
Loofah Jan 25 Mar 22 Mar 29 Jul 12 – Sep 13 100–150
Luffa Jan 25 Mar 22 Mar 29 Jun 28 – Sep 13 90–150
Mache Feb 8 Mar 1 Mar 15 Apr 26 – May 31 40–60
Malabar Spinach Jan 25 Mar 22 Mar 29 May 24 – Jun 21 55–70
Melon Feb 15 Mar 22 Mar 29 Jun 7 – Jul 26 70–100
Microgreens Feb 8 Mar 1 Mar 15 Mar 22 – Apr 19 7–21
Mitsuba Feb 8 Mar 1 Mar 8 May 3 – Jun 28 50–70
Mizuna Feb 8 Mar 1 Mar 15 Apr 19 – May 17 30–45
Mustard Greens Feb 8 Mar 1 Mar 15 Apr 19 – Jun 21 30–50
Napa Cabbage Feb 8 Mar 1 Mar 15 May 10 – Jun 14 55–75
New Zealand Spinach Jan 25 Mar 22 Mar 29 May 24 – Jun 21 55–70
Okra Jan 25 Mar 22 Mar 29 May 24 – Jul 19 50–65
Onion Feb 8 Mar 1 Mar 15 Jun 14 – Aug 2 90–120
Pac Choi Feb 8 Mar 1 Mar 15 Apr 26 – May 24 40–55
Parsnip Mar 1 Jun 14 – Jul 26 100–130
Patty Pan Squash Feb 15 Mar 22 Mar 29 May 17 – Jun 14 45–60
Peas Feb 8 Mar 1 Mar 15 May 10 – Jul 5 55–70
Peppers Jan 11 Mar 22 Mar 29 May 31 – Aug 9 60–90
Pole Beans Jan 25 Mar 22 Mar 29 May 24 – Jul 19 55–70
Potatoes Jan 25 Mar 22 Mar 29 Jun 7 – Aug 16 70–120
Pumpkin Feb 15 Mar 22 Mar 29 Jun 28 – Aug 16 85–120
Purslane Feb 8 Mar 1 Mar 15 Apr 26 – May 31 40–60
Radicchio Feb 8 Mar 1 Mar 15 May 17 – Jun 21 60–80
Radish Mar 1 Mar 29 – Apr 19 22–35
Rhubarb Apr 5 365–730
Romanesco Feb 8 Mar 1 Mar 15 May 31 – Jul 12 75–100
Rutabaga Mar 1 May 24 – Jun 28 80–100
Salsify Mar 1 Jun 14 – Jul 26 100–130
Savoy Cabbage Feb 8 Mar 1 Mar 15 May 24 – Jul 19 70–110
Scallions Feb 8 Mar 1 Mar 15 May 10 – Jun 7 50–70
Scarlet Runner Beans Jan 25 Mar 22 Mar 29 May 31 – Jul 5 60–80
Shallot Feb 8 Mar 1 Mar 15 Jun 14 – Aug 2 90–120
Shiso Jan 25 Mar 22 Mar 29 May 24 – Jul 19 50–70
Snap Peas Jan 25 Mar 22 Mar 29 May 24 – Jul 19 55–70
Snow Peas Feb 8 Mar 1 Mar 15 May 10 – Jul 5 50–65
Soybeans Mar 22 Jun 14 – Aug 9 80–120
Spaghetti Squash Feb 15 Mar 22 Mar 29 Jun 28 – Jul 26 85–100
Spinach Feb 8 Mar 1 Mar 15 Apr 19 – Jun 21 35–50
Squash (Summer) Feb 15 Mar 22 Mar 29 May 17 – Jul 19 45–65
Squash (Winter) Feb 15 Mar 22 Mar 29 Jun 21 – Aug 16 80–120
Sunchoke Mar 29 Jul 19 – Sep 13 110–150
Sunflower Jan 25 Mar 22 Mar 29 Jun 7 – Jul 26 70–100
Sweet Corn Mar 22 May 24 – Jul 5 60–90
Sweet Potatoes Jan 25 Mar 22 Mar 29 Jun 28 – Aug 16 90–120
Tatsoi Feb 8 Mar 1 Mar 15 Apr 19 – May 24 35–50
Tomatillo Jan 25 Mar 22 Mar 29 May 31 – Aug 9 60–85
Tomatoes Jan 25 Mar 22 Mar 29 May 31 – Aug 9 60–85
Turnip Mar 1 Apr 12 – May 17 40–60
Watercress Feb 8 Mar 1 Mar 15 Apr 26 – May 31 40–60
Watermelon Feb 15 Mar 22 Mar 29 Jun 7 – Jul 26 70–100
Wax Beans Mar 22 May 17 – Jul 12 50–65
Winter Melon Jan 25 Mar 22 Mar 29 Jun 28 – Aug 16 90–120
Yard Long Beans Jan 25 Mar 22 Mar 29 May 24 – Jul 5 55–80
Zucchini Feb 15 Mar 22 Mar 29 May 17 – Jul 12 45–60

🍓 Fruits to Grow in Lamar County

31 fruits that grow well in Zone 7b with planting dates for Lamar County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Apr 5 Jul 5 – Oct 18 90–180
Aronia Apr 5 730–1095
Blackberries Apr 5 365–730
Blueberries Apr 5 730–1095
Boysenberries Apr 5 365–730
Cantaloupe Apr 5 Jun 14 – Jul 19 70–90
Che Fruit Apr 5 1095–1825
Cranberries Apr 5 730–1095
Currants Apr 5 730–1095
Elderberries Apr 5 730–1095
Figs Apr 5 730–1825
Goji Berries Apr 5 730–1095
Gooseberries Apr 5 730–1095
Grapes Apr 5 730–1095
Ground Cherry Apr 5 Jun 14 – Aug 9 65–80
Hardy Kiwi Apr 5 1095–1825
Haskaps Apr 5 730–1095
Honeydew Apr 5 Jun 28 – Aug 9 80–110
Jostaberry Apr 5 730–1095
Kiwi Apr 5 1095–1825
Lingonberries Apr 5 730–1095
Loquat Apr 5 730–1825
Medlar Apr 5 1095–1825
Mulberries Apr 5 730–1825
Pawpaw Apr 5 1095–2555
Persimmon Apr 5 1095–2555
Pomegranate Apr 5 730–1095
Quince Apr 5 1095–1825
Raspberries Apr 5 365–730
Serviceberries Apr 5 730–1095
Strawberries Apr 5 Jul 5 – Nov 15 90–365

🌿 Herbs to Grow in Lamar County

39 herbs that grow well in Zone 7b with planting dates for Lamar County.

Show all 39 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Feb 8 Mar 1 Mar 8 365–730
Anise Feb 8 Mar 1 Mar 8 Jun 7 – Aug 23 90–120
Basil Jan 25 Mar 22 Mar 29 May 24 – Jul 26 50–75
Bee Balm Mar 22 Jun 21 – Sep 6 90–120
Borage Feb 8 Mar 1 Mar 8 May 3 – Jun 21 50–60
Caraway Feb 8 Mar 1 Mar 8 365–450
Catnip Mar 22 May 24 – Jul 26 60–80
Chamomile Feb 8 Mar 1 Mar 8 May 10 – Jul 19 60–90
Chervil Feb 8 Mar 1 Mar 8 Apr 19 – Jun 21 40–60
Chives Mar 22 May 24 – Aug 2 60–90
Cilantro Feb 8 Mar 1 Mar 8 Apr 19 – Jun 21 40–60
Comfrey Mar 22 May 24 – Aug 2 60–90
Cumin Feb 8 Mar 1 Mar 8 Jun 21 – Aug 23 100–120
Dill Feb 8 Mar 1 Mar 8 Apr 19 – Jun 21 40–60
Echinacea Mar 22 Jul 26 – Nov 1 120–180
Epazote Jan 25 Mar 22 Mar 29 May 17 – Jul 12 45–60
Fennel (herb) Feb 8 Mar 1 Mar 8 May 10 – Jul 19 60–90
Feverfew Mar 22 Jun 21 – Sep 6 90–120
Garlic Chives Mar 22 May 24 – Aug 2 60–90
Horehound Mar 22 Jun 7 – Aug 2 75–90
Hyssop Mar 22 May 31 – Aug 2 70–90
Lavender Mar 22 Jun 21 – Nov 1 90–200
Lemon Balm Mar 22 May 24 – Jul 12 60–70
Lemon Thyme Mar 22 May 31 – Aug 2 70–90
Lovage Mar 22 May 31 – Aug 2 70–90
Marjoram Mar 22 May 24 – Aug 2 60–90
Mint Mar 22 May 24 – Aug 2 60–90
Oregano Mar 22 May 24 – Aug 2 60–90
Parsley Feb 8 Mar 1 Mar 8 May 10 – Jul 12 60–80
Rosemary Mar 22 Jun 14 – Nov 1 80–180
Rue Mar 22 May 31 – Aug 2 70–90
Sage Mar 22 Jun 7 – Aug 2 75–90
Savory Mar 22 May 17 – Jul 12 50–70
Sorrel Feb 8 Mar 1 Mar 8 Apr 19 – Jun 21 40–60
Tarragon Mar 22 May 24 – Aug 2 60–90
Thai Basil Jan 25 Mar 22 Mar 29 May 24 – Jul 26 50–75
Thyme Mar 22 May 31 – Aug 2 70–90
Valerian Mar 22 Jul 26 – Nov 1 120–180
Yarrow Mar 22 Jun 21 – Sep 6 90–120

Monthly Planting Guide for Lamar County

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Lamar County.

Frequently Asked Questions

What planting zone is Lamar County, TX?

Lamar County is in USDA Hardiness Zone 7b. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.

When is the last frost in Lamar County, TX?

Based on 31 years of NOAA weather station data, the median last spring frost in Lamar County falls around March 15. In 8 out of 10 years, last frost lands between February 25 and April 9 — a 43-day window of variability. Use April 9 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Lamar County, TX?

The median first fall frost in Lamar County arrives around November 15. In cold years it can arrive as early as October 28; in mild years as late as November 30. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Lamar County?

Lamar County has a frost-free growing season of approximately 245 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending longer by about 3.28 days per decade.

What is the soil like in Lamar County for gardening?

Lamar County has predominantly Sandy Loam soil with a pH range of 5.8–6.8 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Lamar County?

Lamar County has commercial agriculture that includes Cotton, Cattle, Sorghum, Wheat. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is Lamar County a good location for home gardening?

Lamar County scores 46/100 (Moderate) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Gardening here benefits from close attention to frost timing and season extension due to the challenging microclimate factors.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — designed to help Lamar County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Level Up Your Garden

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Lamar County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.